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31 / 232 10489 / 26083


Triple Dereference

Time of First Successful Submission: 2025-11-19 18:42:05

set-register

Time of First Successful Submission: 2025-11-22 00:22:00

set-multiple-registers

Time of First Successful Submission: 2025-11-22 00:23:23

add-to-register

Time of First Successful Submission: 2025-11-22 00:50:55

linear-equation-registers

Time of First Successful Submission: 2025-11-22 13:12:21

integer-division

Time of First Successful Submission: 2025-11-22 13:40:11

modulo-operation

Time of First Successful Submission: 2025-11-22 13:43:21

set-upper-byte

Time of First Successful Submission: 2025-11-22 13:46:16

efficient-modulo

Time of First Successful Submission: 2025-11-22 14:04:53

byte-extraction

Time of First Successful Submission: 2025-12-26 17:00:43

bitwise-and

Time of First Successful Submission: 2025-12-26 17:22:59

check-even

Time of First Successful Submission: 2025-12-26 18:13:54

memory-read

Time of First Successful Submission: 2025-12-26 18:59:50

memory-write

Time of First Successful Submission: 2025-12-26 19:27:57

memory-increment

Time of First Successful Submission: 2025-12-26 20:11:38

byte-access

Time of First Successful Submission: 2025-12-26 20:22:12

memory-size-access

Time of First Successful Submission: 2025-12-26 20:48:42

little-endian-write

Time of First Successful Submission: 2025-12-26 23:55:36

memory-sum

Time of First Successful Submission: 2025-12-27 00:49:31

stack-subtraction

Time of First Successful Submission: 2025-12-27 00:54:42

swap-stack-values

Time of First Successful Submission: 2025-12-27 00:59:35

average-stack-values

Time of First Successful Submission: 2025-12-27 01:12:29

absolute-jump

Time of First Successful Submission: 2026-01-27 23:38:58

relative-jump

Time of First Successful Submission: 2026-01-27 23:54:06

jump-trampoline

Time of First Successful Submission: 2026-01-27 23:59:55

conditional-jump

Time of First Successful Submission: 2026-01-28 00:30:36

indirect-jump

Time of First Successful Submission: 2026-01-28 01:26:40

average-loop

Time of First Successful Submission: 2026-01-28 01:45:37

count-non-zero

Time of First Successful Submission: 2026-01-28 03:05:16

string-lower

Time of First Successful Submission: 2026-01-28 04:11:09

most-common-byte

Time of First Successful Submission: 2026-01-30 19:19:02


Intro to Programming Languages

15 / 253 2966 / 52981


Commands

Time of First Successful Submission: 2025-05-29 22:23:50

Command Arguments

Time of First Successful Submission: 2025-05-29 22:26:13

Command History

Time of First Successful Submission: 2025-06-15 15:34:39

The Root Path

Time of First Successful Submission: 2025-05-30 01:14:25

Absolute Paths

Time of First Successful Submission: 2025-05-30 01:15:43

Changing position

Time of First Successful Submission: 2025-05-30 01:16:50

Changing to an Absolute Path

Time of First Successful Submission: 2025-05-30 01:18:06

Relative Paths

Time of First Successful Submission: 2025-05-30 01:28:30

Cat

Time of First Successful Submission: 2025-05-30 02:21:17

Ls

Time of First Successful Submission: 2025-05-30 02:31:51

Ls All

Time of First Successful Submission: 2025-05-30 02:37:51

Find

Time of First Successful Submission: 2025-05-30 02:47:58

Piping Echo

Time of First Successful Submission: 2025-07-17 23:21:21

Piping Stdout

Time of First Successful Submission: 2025-07-17 23:22:47

Piping Stdin

Time of First Successful Submission: 2025-07-17 23:43:46


Intro to Cybersecurity

6 / 183 19260 / 25934


Path Traversal 1

Time of First Successful Submission: 2026-10-20 17:44:25

Path Traversal 2

Time of First Successful Submission: 2026-10-21 16:09:05

CMDi 1

Time of First Successful Submission: 2026-10-22 20:09:18

CMDi 2

Time of First Successful Submission: 2026-10-23 17:34:19

CMDi 3

Time of First Successful Submission: 2026-10-24 21:19:14

CMDi 4

Time of First Successful Submission: 2026-10-25 13:23:26


Start Here

10 / 10 1004 / 73426


Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22


Linux Luminarium

128 / 128 2563 / 53709


Intro to Commands

Time of First Successful Submission: 2025-05-29 22:23:50

Intro to Arguments

Time of First Successful Submission: 2025-05-29 22:26:13

Command History

Time of First Successful Submission: 2025-06-15 15:34:39

The Root

Time of First Successful Submission: 2025-05-30 01:14:25

Program and absolute paths

Time of First Successful Submission: 2025-05-30 01:15:43

Position thy self

Time of First Successful Submission: 2025-05-30 01:16:50

Position elsewhere

Time of First Successful Submission: 2025-05-30 01:18:06

implicit relative paths, from /

Time of First Successful Submission: 2025-05-30 01:28:30

explicit relative paths, from /

Time of First Successful Submission: 2025-05-30 01:30:09

implicit relative path

Time of First Successful Submission: 2025-05-30 01:31:02

home sweet home

Time of First Successful Submission: 2025-05-30 01:34:15

cat: not the pet, but the command!

Time of First Successful Submission: 2025-05-30 02:21:17

catting absolute paths

Time of First Successful Submission: 2025-05-30 02:22:57

more catting practice

Time of First Successful Submission: 2025-05-30 02:24:23

grepping for a needle in a haystack

Time of First Successful Submission: 2025-05-30 02:25:46

comparing files

Time of First Successful Submission: 2025-11-20 19:42:14

listing files

Time of First Successful Submission: 2025-05-30 02:31:51

touching files

Time of First Successful Submission: 2025-05-30 02:32:57

removing files

Time of First Successful Submission: 2025-05-30 02:33:40

moving files

Time of First Successful Submission: 2025-06-19 12:49:51

copying files

Time of First Successful Submission: 2025-11-20 19:37:58

hidden files

Time of First Successful Submission: 2025-05-30 02:37:51

An Epic Filesystem Quest

Time of First Successful Submission: 2025-05-30 02:42:43

making directories

Time of First Successful Submission: 2025-05-30 02:45:01

finding files

Time of First Successful Submission: 2025-05-30 02:47:58

linking files

Time of First Successful Submission: 2025-05-30 19:31:48

Learning From Documentation

Time of First Successful Submission: 2025-05-30 19:36:36

Learning Complex Usage

Time of First Successful Submission: 2025-05-30 19:40:13

Reading Manuals

Time of First Successful Submission: 2025-05-30 19:43:05

Searching Manuals

Time of First Successful Submission: 2025-05-30 19:49:24

Searching For Manuals

Time of First Successful Submission: 2025-06-19 14:09:41

Helpful Programs

Time of First Successful Submission: 2025-06-19 14:16:44

Help for Builtins

Time of First Successful Submission: 2025-06-19 14:21:45

Matching with *

Time of First Successful Submission: 2025-06-19 16:18:02

Matching with ?

Time of First Successful Submission: 2025-07-05 18:01:10

Matching with []

Time of First Successful Submission: 2025-07-05 18:08:05

Matching paths with []

Time of First Successful Submission: 2025-07-05 18:22:14

Multiple globs

Time of First Successful Submission: 2025-07-05 18:25:02

Mixing globs

Time of First Successful Submission: 2025-07-17 23:12:54

Exclusionary globbing

Time of First Successful Submission: 2025-07-17 23:17:58

Tab completion

Time of First Successful Submission: 2025-06-19 16:15:31

Multiple options for tab completion

Time of First Successful Submission: 2025-06-19 16:16:58

Tab completion on commands

Time of First Successful Submission: 2025-06-19 16:17:40

Redirecting output

Time of First Successful Submission: 2025-07-17 23:21:21

Redirecting more output

Time of First Successful Submission: 2025-07-17 23:22:47

Appending output

Time of First Successful Submission: 2025-07-17 23:32:28

Redirecting errors

Time of First Successful Submission: 2025-07-17 23:41:54

Redirecting input

Time of First Successful Submission: 2025-07-17 23:43:46

Grepping stored results

Time of First Successful Submission: 2025-07-17 23:45:07

Grepping live output

Time of First Successful Submission: 2025-07-17 23:46:02

Grepping errors

Time of First Successful Submission: 2025-07-17 23:50:09

Filtering with grep -v

Time of First Successful Submission: 2025-07-17 23:52:11

Filtering with sed

Time of First Successful Submission: 2025-12-23 13:47:56

Duplicating piped data with tee

Time of First Successful Submission: 2025-07-18 00:01:12

Process substitution for input

Time of First Successful Submission: 2025-12-23 13:53:55

Writing to multiple programs

Time of First Successful Submission: 2025-07-18 13:59:31

Split-piping stderr and stdout

Time of First Successful Submission: 2025-07-18 14:16:39

Named pipes

Time of First Successful Submission: 2025-12-23 14:02:54

Printing Variables

Time of First Successful Submission: 2025-07-18 14:25:36

Setting Variables

Time of First Successful Submission: 2025-07-18 14:29:13

Multi-word Variables

Time of First Successful Submission: 2025-07-18 14:33:52

Exporting Variables

Time of First Successful Submission: 2025-07-18 14:36:43

Printing Exported Variables

Time of First Successful Submission: 2025-07-18 14:37:42

Storing Command Output

Time of First Successful Submission: 2025-07-18 14:39:45

Reading Input

Time of First Successful Submission: 2025-07-18 15:02:58

Reading Files

Time of First Successful Submission: 2025-07-18 15:05:56

Translating characters

Time of First Successful Submission: 2025-07-18 15:25:47

Deleting characters

Time of First Successful Submission: 2026-02-26 13:09:43

Deleting newlines

Time of First Successful Submission: 2026-02-26 13:11:02

Extracting the first lines with head

Time of First Successful Submission: 2026-02-26 13:12:32

Extracting specific sections of text

Time of First Successful Submission: 2026-02-26 13:18:20

Sorting data

Time of First Successful Submission: 2026-02-26 13:20:54

Listing Processes

Time of First Successful Submission: 2026-02-26 14:40:25

Killing Processes

Time of First Successful Submission: 2026-02-26 14:43:01

Interrupting Processes

Time of First Successful Submission: 2026-02-26 14:43:44

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-26 15:02:47

Suspending Processes

Time of First Successful Submission: 2026-02-26 15:07:16

Resuming Processes

Time of First Successful Submission: 2026-02-26 15:07:53

Backgrounding Processes

Time of First Successful Submission: 2026-02-26 15:11:06

Foregrounding Processes

Time of First Successful Submission: 2026-02-26 15:14:15

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-26 15:17:13

Process Exit Codes

Time of First Successful Submission: 2026-02-26 15:19:23

Becoming root with su

Time of First Successful Submission: 2025-12-23 14:09:59

Other users with su

Time of First Successful Submission: 2025-12-23 14:11:42

Cracking passwords

Time of First Successful Submission: 2025-12-23 14:14:28

Using sudo

Time of First Successful Submission: 2025-12-23 14:16:00

Changing File Ownership

Time of First Successful Submission: 2026-02-27 12:15:05

Groups and Files

Time of First Successful Submission: 2026-02-27 13:47:51

Fun With Groups Names

Time of First Successful Submission: 2026-02-27 13:52:21

Changing Permissions

Time of First Successful Submission: 2026-02-27 22:52:13

Executable Files

Time of First Successful Submission: 2026-02-27 23:14:33

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-27 23:30:20

Permissions Setting Practice

Time of First Successful Submission: 2026-02-27 23:34:09

The SUID Bit

Time of First Successful Submission: 2026-02-27 23:35:44

Chaining with Semicolons

Time of First Successful Submission: 2026-02-27 23:41:01

Building on Success

Time of First Successful Submission: 2026-02-27 23:42:43

Handling Failure

Time of First Successful Submission: 2026-02-27 23:43:17

Your First Shell Script

Time of First Successful Submission: 2026-02-27 23:46:42

Redirecting Script Output

Time of First Successful Submission: 2026-03-01 03:10:50

Executable Shell Scripts

Time of First Successful Submission: 2026-03-01 03:11:42

Understanding Shebangs

Time of First Successful Submission: 2026-03-01 03:13:28

Scripting with Arguments

Time of First Successful Submission: 2026-03-01 03:14:55

Scripting with Conditionals

Time of First Successful Submission: 2026-03-01 03:21:02

Scripting with Default Cases

Time of First Successful Submission: 2026-03-01 03:22:05

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-01 03:24:26

Reading Shell Scripts

Time of First Successful Submission: 2026-03-01 03:25:59

Launching Screen

Time of First Successful Submission: 2025-12-23 00:30:15

Detaching and Attaching

Time of First Successful Submission: 2025-12-23 00:32:22

Finding Sessions

Time of First Successful Submission: 2025-12-23 00:35:08

Switching Windows

Time of First Successful Submission: 2025-12-23 00:45:26

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-23 00:47:23

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-23 00:48:48

The PATH Variable

Time of First Successful Submission: 2026-03-01 03:28:23

Setting PATH

Time of First Successful Submission: 2026-03-01 03:30:57

Finding Commands

Time of First Successful Submission: 2026-03-01 03:33:17

Adding Commands

Time of First Successful Submission: 2026-03-01 03:45:22

Hijacking Commands

Time of First Successful Submission: 2026-03-01 03:52:20

Bashrc Backdoor

Time of First Successful Submission: 2026-03-21 13:15:05

Sniffing Input

Time of First Successful Submission: 2026-03-21 14:27:27

Overshared Directories

Time of First Successful Submission: 2026-03-21 14:34:01

Tricky Linking

Time of First Successful Submission: 2026-03-21 14:42:53

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-24 11:14:58

Snooping on Configurations

Time of First Successful Submission: 2026-03-24 11:18:24

The Fork Bomb

Time of First Successful Submission: 2026-03-01 13:30:23

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-01 13:33:20

rm -rf /

Time of First Successful Submission: 2026-03-01 13:35:59

Life after rm -rf /

Time of First Successful Submission: 2026-03-01 13:42:48

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-01 13:47:47


Computing 101

63 / 132 2852 / 25551


Your First Register

Time of First Successful Submission: 2025-11-16 13:10:18

Your First Syscall

Time of First Successful Submission: 2025-11-16 13:17:59

Exit Codes

Time of First Successful Submission: 2025-11-16 13:20:51

Building Executables

Time of First Successful Submission: 2025-11-16 13:56:42

Moving Between Registers

Time of First Successful Submission: 2025-11-16 15:30:21

Loading From Memory

Time of First Successful Submission: 2025-11-17 18:21:21

More Loading Practice

Time of First Successful Submission: 2025-11-17 18:24:08

Dereferencing Pointers

Time of First Successful Submission: 2025-11-19 17:33:07

Dereferencing Yourself

Time of First Successful Submission: 2025-11-19 17:46:33

Dereferencing with Offsets

Time of First Successful Submission: 2025-11-19 18:09:07

Stored Addresses

Time of First Successful Submission: 2025-11-19 18:26:58

Double Dereference

Time of First Successful Submission: 2025-11-19 18:40:40

The Stack

Time of First Successful Submission: 2026-07-05 16:25:02

Stack Offsets

Time of First Successful Submission: 2026-07-05 16:36:15

Program Arguments on the Stack

Time of First Successful Submission: 2026-07-05 16:39:40

Popping From the Stack

Time of First Successful Submission: 2026-07-05 16:44:35

Negative Numbers

Time of First Successful Submission: 2026-07-09 07:57:36

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-07-09 08:18:59

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-07-11 12:49:06

Encoding Negatives

Time of First Successful Submission: 2026-07-11 13:04:14

Binary and Hex Encoding

Time of First Successful Submission: 2026-07-11 13:06:31

More Hex

Time of First Successful Submission: 2026-07-11 13:09:11

Decoding Hex

Time of First Successful Submission: 2026-07-11 13:10:18

Mixed Conversions

Time of First Successful Submission: 2026-07-11 13:27:44

Disassembling Programs

Time of First Successful Submission: 2026-07-11 13:36:56

Tracing Syscalls

Time of First Successful Submission: 2025-11-16 18:11:41

Starting GDB

Time of First Successful Submission: 2025-11-16 18:13:07

Quitting GDB

Time of First Successful Submission: 2026-07-11 13:53:10

Starting Programs in GDB

Time of First Successful Submission: 2025-11-16 18:16:15

Disassembling in GDB

Time of First Successful Submission: 2026-07-11 13:57:34

Stepping Through Instructions

Time of First Successful Submission: 2026-07-11 13:59:01

Reading Register Values

Time of First Successful Submission: 2026-07-11 14:30:18

Setting Register Values

Time of First Successful Submission: 2026-07-11 14:33:14

Popping Stack Values

Time of First Successful Submission: 2026-07-11 14:42:55

Examining Memory

Time of First Successful Submission: 2026-07-11 14:51:12

Examining Stack Pointers

Time of First Successful Submission: 2026-07-11 15:34:46

Cooperative Debugging

Time of First Successful Submission: 2026-07-11 15:41:53

Running with Arguments

Time of First Successful Submission: 2026-07-11 15:44:02

Redirecting Input in GDB

Time of First Successful Submission: 2026-07-11 15:45:38

Writing Output

Time of First Successful Submission: 2025-11-20 15:00:52

Chaining Syscalls

Time of First Successful Submission: 2025-11-20 15:06:34

Writing Strings

Time of First Successful Submission: 2025-11-20 15:07:39

Reading Data

Time of First Successful Submission: 2025-11-20 15:18:05

Reading Exactly

Time of First Successful Submission: 2026-07-12 19:00:58

Opening Files

Time of First Successful Submission: 2026-07-12 19:26:41

Hardcoding the Filename

Time of First Successful Submission: 2026-07-12 19:29:07

RIP-Relative Strings

Time of First Successful Submission: 2026-07-12 19:41:45

Comparing Values

Time of First Successful Submission: 2026-08-10 17:50:01

Comparing Characters

Time of First Successful Submission: 2026-08-10 18:05:50

Conditional Control Flow

Time of First Successful Submission: 2026-08-14 18:22:54

Comparing Strings

Time of First Successful Submission: 2026-08-14 18:25:44

Reverse the Password

Time of First Successful Submission: 2026-08-14 18:29:07

Conditionals Without Conditionals

Time of First Successful Submission: 2026-10-13 16:51:01

Recognizing Loops

Time of First Successful Submission: 2026-10-14 18:07:25

Writing Loops

Time of First Successful Submission: 2026-10-15 09:47:51

Writing From a Shared Library

Time of First Successful Submission: 2026-10-16 10:28:39

Returning a Value

Time of First Successful Submission: 2026-10-16 10:47:17

Calling Through a Pointer

Time of First Successful Submission: 2026-10-16 15:36:03

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-10-16 15:39:42

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-10-16 15:52:43

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-10-16 16:03:19

Debugging Programs

Time of First Successful Submission: 2026-02-01 18:08:41

Inspecting Registers

Time of First Successful Submission: 2026-02-01 18:11:42


Playing With Programs

104 / 116 1684 / 27143


What's the password?

Time of First Successful Submission: 2026-08-10 02:32:14

... and again!

Time of First Successful Submission: 2026-08-10 02:33:08

Newline Troubles

Time of First Successful Submission: 2026-08-10 02:35:43

Reasoning about files

Time of First Successful Submission: 2026-08-10 02:46:22

Specifying Filenames

Time of First Successful Submission: 2026-10-17 14:42:58

Binary and Hex Encoding

Time of First Successful Submission: 2026-10-18 17:16:39

More Hex

Time of First Successful Submission: 2026-10-19 13:24:36

Your First HTTP Request

Time of First Successful Submission: 2026-09-21 21:39:22

Reading Flask

Time of First Successful Submission: 2026-09-21 21:58:42

Commented Data

Time of First Successful Submission: 2026-09-21 22:02:46

HTTP Metadata

Time of First Successful Submission: 2026-09-21 22:06:04

HTTP (netcat)

Time of First Successful Submission: 2026-09-22 10:36:52

HTTP Paths (netcat)

Time of First Successful Submission: 2026-09-22 10:40:59

HTTP (curl)

Time of First Successful Submission: 2026-09-22 10:45:30

HTTP (python)

Time of First Successful Submission: 2026-09-22 10:58:23

HTTP Host Header (python)

Time of First Successful Submission: 2026-09-22 11:16:34

HTTP Host Header (curl)

Time of First Successful Submission: 2026-09-22 12:21:16

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-09-22 12:29:21

URL Encoding (netcat)

Time of First Successful Submission: 2026-09-22 12:33:44

HTTP GET Parameters

Time of First Successful Submission: 2026-09-22 13:03:58

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-09-22 13:07:14

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-09-22 13:14:26

HTTP Forms

Time of First Successful Submission: 2026-10-06 12:15:16

HTTP Forms (curl)

Time of First Successful Submission: 2026-10-06 12:18:14

HTTP Forms (netcat)

Time of First Successful Submission: 2026-10-06 12:28:48

HTTP Forms (python)

Time of First Successful Submission: 2026-10-06 12:40:13

HTTP Forms Without Forms

Time of First Successful Submission: 2026-10-06 12:43:08

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-10-06 12:46:23

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-10-06 12:53:21

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-10-12 10:22:06

HTTP Redirects (curl)

Time of First Successful Submission: 2026-10-12 10:23:22

HTTP Redirects (python)

Time of First Successful Submission: 2026-10-12 10:28:40

HTTP Cookies (curl)

Time of First Successful Submission: 2026-10-13 09:38:02

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-10-13 09:50:45

HTTP Cookies (python)

Time of First Successful Submission: 2026-10-13 09:54:58

Server State (python)

Time of First Successful Submission: 2026-10-13 10:43:20

Listening Web

Time of First Successful Submission: 2026-10-13 12:13:07

Speaking Redirects

Time of First Successful Submission: 2026-10-13 12:38:15

JavaScript Redirects

Time of First Successful Submission: 2026-10-13 12:52:53

Including JavaScript

Time of First Successful Submission: 2026-10-13 13:19:10

HTTP (javascript)

Time of First Successful Submission: 2026-10-13 13:46:43

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-10-13 13:56:49

HTTP Forms (javascript)

Time of First Successful Submission: 2026-10-13 14:05:01

cat

Time of First Successful Submission: 2026-03-24 11:29:24

more

Time of First Successful Submission: 2026-03-24 11:30:06

less

Time of First Successful Submission: 2026-03-24 11:30:39

tail

Time of First Successful Submission: 2026-03-24 11:31:03

head

Time of First Successful Submission: 2026-03-24 11:31:27

sort

Time of First Successful Submission: 2026-03-24 11:31:52

vim

Time of First Successful Submission: 2026-03-24 11:32:21

emacs

Time of First Successful Submission: 2026-03-24 11:32:46

nano

Time of First Successful Submission: 2026-03-24 11:33:14

rev

Time of First Successful Submission: 2026-03-24 11:34:00

od

Time of First Successful Submission: 2026-03-24 11:39:05

hd

Time of First Successful Submission: 2026-03-24 11:40:31

xxd

Time of First Successful Submission: 2026-03-24 11:41:45

base32

Time of First Successful Submission: 2026-03-24 22:10:39

base64

Time of First Successful Submission: 2026-03-24 22:11:17

split

Time of First Successful Submission: 2026-03-24 22:13:15

gzip

Time of First Successful Submission: 2026-03-24 22:20:30

bzip2

Time of First Successful Submission: 2026-09-16 09:21:26

zip

Time of First Successful Submission: 2026-09-16 09:23:48

tar

Time of First Successful Submission: 2026-09-16 09:24:38

ar

Time of First Successful Submission: 2026-03-24 22:45:12

cpio

Time of First Successful Submission: 2026-09-16 09:26:07

genisoimage

Time of First Successful Submission: 2026-09-16 09:27:35

env

Time of First Successful Submission: 2026-09-16 09:28:33

find

Time of First Successful Submission: 2026-09-16 09:29:35

make

Time of First Successful Submission: 2026-09-16 09:30:11

nice

Time of First Successful Submission: 2026-09-16 09:30:41

timeout

Time of First Successful Submission: 2026-09-16 09:31:16

stdbuf

Time of First Successful Submission: 2026-09-16 09:31:55

setarch

Time of First Successful Submission: 2026-09-16 09:37:18

watch

Time of First Successful Submission: 2026-09-16 09:38:07

socat

Time of First Successful Submission: 2026-09-16 09:38:52

whiptail

Time of First Successful Submission: 2026-09-16 09:43:11

awk

Time of First Successful Submission: 2026-09-16 09:43:44

sed

Time of First Successful Submission: 2026-09-16 09:44:21

ed

Time of First Successful Submission: 2026-09-16 09:45:38

chown

Time of First Successful Submission: 2026-09-16 09:47:36

chmod

Time of First Successful Submission: 2026-09-16 09:48:06

cp

Time of First Successful Submission: 2026-09-16 09:48:42

mv

Time of First Successful Submission: 2026-09-17 18:48:32

perl

Time of First Successful Submission: 2026-09-17 13:41:47

python

Time of First Successful Submission: 2026-09-17 13:39:46

ruby

Time of First Successful Submission: 2026-09-17 13:43:59

bash

Time of First Successful Submission: 2026-09-17 13:37:33

date

Time of First Successful Submission: 2026-09-17 13:35:53

dmesg

Time of First Successful Submission: 2026-09-17 13:36:39

wc

Time of First Successful Submission: 2026-03-24 22:21:44

gcc

Time of First Successful Submission: 2026-03-24 22:22:13

as

Time of First Successful Submission: 2026-03-24 22:43:44

wget

Time of First Successful Submission: 2026-03-24 22:34:14

ssh-keygen

Time of First Successful Submission: 2026-03-24 22:42:40

SQL Queries

Time of First Successful Submission: 2026-09-20 18:52:10

Filtering SQL

Time of First Successful Submission: 2026-09-20 19:02:51

Choosing Columns

Time of First Successful Submission: 2026-09-20 19:04:05

Exclusionary Filtering

Time of First Successful Submission: 2026-09-20 19:07:50

Filtering Strings

Time of First Successful Submission: 2026-09-20 19:09:24

Filtering on Expressions

Time of First Successful Submission: 2026-09-20 19:20:00

SELECTing Expressions

Time of First Successful Submission: 2026-09-21 12:13:23

Composite Conditions

Time of First Successful Submission: 2026-09-21 12:21:26

Reaching Your LIMITs

Time of First Successful Submission: 2026-09-21 13:04:50

Querying Metadata

Time of First Successful Submission: 2026-09-21 13:23:07


DSU Cyber Camps

11 / 104 7275 / 73905


Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Getting Help

Time of First Successful Submission: 2025-05-29 22:06:15

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22


GCA CTF

11 / 104 7275 / 73905


Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Getting Help

Time of First Successful Submission: 2025-05-29 22:06:15

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22


Hacker History

8 / 8 81 / 191


External BBS (login)

Time of First Successful Submission: 2026-07-22 15:42:18

Internal BBS

Time of First Successful Submission: 2026-08-10 15:56:24

Join an IRC Server

Time of First Successful Submission: 2026-08-10 16:56:03

Join an IRC Server (with an IRC Client)

Time of First Successful Submission: 2026-08-10 16:57:14

Change your nickname

Time of First Successful Submission: 2026-08-10 17:00:36

Join a channel

Time of First Successful Submission: 2026-08-10 17:02:39

Message a channel

Time of First Successful Submission: 2026-08-10 17:05:46

Remove another user

Time of First Successful Submission: 2026-08-10 17:07:38


Pwntools Tutorials

8 / 12 644 / 1486


Level 0.0

Time of First Successful Submission: 2026-07-15 12:27:38

Level 1.0

Time of First Successful Submission: 2026-07-15 15:40:56

Level 1.1

Time of First Successful Submission: 2026-07-16 10:31:38

Level 2.0

Time of First Successful Submission: 2026-07-17 09:29:44

Level 2.1

Time of First Successful Submission: 2026-07-17 09:38:58

Level 2.2

Time of First Successful Submission: 2026-07-17 09:51:44

Level 2.3

Time of First Successful Submission: 2026-07-17 09:58:58

Level 2.4

Time of First Successful Submission: 2026-07-22 15:18:51